Metal boat



(No Model.) 2 `sheets-sheep 1.

M E T A L B 0 A Tl No. 433,085.' Patented July 29, 1890.

WITS- j U VB w (No Model.) 2 Sheets-Sheet 2.

W. W. KEYS.

METAL BOAT.

No. 433,085. Patented July 29, 1890.

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BY u ATTORNEY 'me Noms ruins en., wom-uma.. msmnaww, n. c.

,- NITEI) lSTATES PATENT OFFICE.

VILLIAM W. KEYS, OF BRIDGEPOR'I, CONNECTICUT.

METAL BOAT.

SPECIFICATION forming part of Letters Patent No. 433,085, dated July 29,1890.

Application filed September 6, 1889. Serial No. 323,205. (No model.)

To @ZZ whom it may concern:

Beit known that I, WILLIAM W. KEYS, a citizen of the United States,residing at Bridgeport, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements in MetalBoats; and I do hereby declare the followingr to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the My inventionrelates to boat-building, but has especial reference to the constructionof metal boats, the end aimed at being a strong and simply-constructedboat which shall be perfectly water-tight and which shall present asmooth exterior, unbroken by rivets or bolts.

With these ends in Viewmy invention consists in the details ofconstruction and combination of element-s, such as will be hereinafterfully described, and then specifically designated by the claims.

In the accompanying drawings, Figure l is a side elevation of a boatconstructed in accordance ,with my improvement; Fig. 2, a horizontalsectional view at the line of Fig. l; Fig. 3, a longitudinal verticalsectional view; FigA, a cross-section at the line y y of Fig. l; andFig. 5, a cross-section showing the keel and bottom section castintegral. I

Similar letters denote like parts in the several figures.

A is the keel, to which the bottom sections B are bolted on both sides.The bottom sections C D at the bow and stern are cast each in a singlepiece, with flanges E F on their inner and upper edges, which extendinwardly, and the intermediate sections B have flanges G II extendinginwardly from their lateral and upper edges, the outer lateral O P alongtheir lower and lateral edges, the fianges O being bolted to the upperflanges H of the lower intermediate sections B, while the outer flangesP are bolted to the inner fianges L of the upper bow and stern sections,and the inner flanges P are bolted to each other. The bolting of theflanges forms a water-tight joint, while the flanges themselvesconstitu-te strengthening-ribs capable of resisting an enormous strainor shock. If desired, the keel may be cast integral with theintermediate bottom sections, as shown at Fig. 5.

I prefer to use cast deoxidized bronze in the construction of thevarious sections, since such metal has no effect on the magnetic needleof the compass, is not corrosive, does f not require painting, willrepel barnacles, is stronger and tougher than steel, and in the end, asscrap, has the market value of copper. I have shown only twointermediate sections and only two tiers of sections; but it is obviousthat this invention is not limited in these respects, since the gist ot'said rinvention resides in the broad idea of a castmetal boat made insections bolted together on the inside, so as to leave an unbroken andsmooth exterior.

I claiml. A boat made from cast metal in sections, each section havinginwardly-extendi-ng flanges on all its edges which are abutted againstadjacent sections, the contiguous flanges of adjacent sections beingbolted together, substantially as set forth.

2. A boat made from castmetal sections fitted together by longitudinaland upright joints, the edges of said sections at each ot' the saidlongitudinal and upright joints being provided with inwardly-extendin gflanges bolted together, substantially as set forth. I 3. In a boat madefrom cast-metal sections, as described, the upper and lower bow andstern sections, cast each in a single piece and provided with inwardlyextending edge flanges which are bolted together, substantially as setforth.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM W. KEYS. Witnesses:

F. W. SMITH, Jr.,

tions M N have inwardly-extendingflanges JNO. S. FINCH.

